The Magpies broke their transfer record last summer when they signed Joelinton from German side Hoffenheim for £40million.
And he made a promising start to his career with the winning goal against Tottenham in just his third game for Newcastle.
However, despite being handed regular starts by manager Steve Bruce, Joelinton went 20 games without scoring before breaking his drought in January with a goal in the FA Cup.
Prior to the season being halted in March, Joelinton took his tally for the campaign to three with another FA Cup goal but with his price tag, Newcastle can be disappointed at what they have got back in return.
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"This is a constant evolution and I believe it will be like that at Newcastle.
"I know Newcastle's No 9 shirt is full of history and importance.
"So I arrived at the club willing to work hard and score a lot of goals to represent that shirt well.
"I know that I will be charged for this and I will dedicate myself to the maximum so that things happen in a positive way."
With 50 goals in 84 games for Newcastle, Les Ferdinand had no problems scoring goals for the club and he thinks Joelinton's problems are with the style of play.